Home / 31,024.11-42,838.16-21,576.27

Finding the Fourth Proportional to 31,024.11, 42,838.16 and 21,576.27

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Solution

The fourth proportional to 31,024.11, 42,838.16 and 21,576.27 is: 29,792.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,024.11 : 42,838.16 = 21,576.27 : x
  2. Step 2: Convert to fraction form
    31,024.11/42,838.16 = 21,576.27/x
  3. Step 3: Cross multiply
    31,024.11x = 42,838.16 × 21,576.27
  4. Step 4: Simplify right side
    31,024.11x = 924,287,598.58
  5. Step 5: Solve for x
    x = 924,287,598.58/31,024.11
  6. Step 6: Final answer
    x = 29,792.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.